Hierarchical Self-Assembly of Asymmetric Amphiphatic Spherical Colloidal Particles

Details Hierarchical Self-Assembly of Asymmetric Amphiphatic Spherical Colloidal Particles Hierarchical Self-Assembly of Asymmetric Amphiphatic Spherical Colloidal Particles

2009-05-26

arxiv.org/abs/0905.4236v3

Phys. Rev. E 80, 021404 (2009)

Physics

Condensed Matter

Soft Condensed Matter

14 pages, 9 figures. Revised text version. Published in Physical Review E

Scientific paper

From dumbbells to FCC crystals, we study the self-assembly pathway of amphiphatic, spherical colloidal particles as a function of the size of the hydrophobic region using molecular dynamics simulations. Specifically, we analyze how local inter-particle interactions correlate to the final self-assembled aggregate and how they affect the dynamical pathway of structure formation. We present a detailed diagram separating the many phases that we find for different sizes of the hydrophobic area, and uncover a narrow region where particles self-assemble into hollow, faceted cages that could potentially find interesting engineering applications.

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